WESTPORT WATER ASSOCIATION
Oregon — Community Water System — PWSID: OR4100950
System Information
| PWSID | OR4100950 |
| System Name | WESTPORT WATER ASSOCIATION |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | Oregon |
| City | WESTPORT |
| ZIP Code | 97016 |
| Address | 49206 HWY 30 |
| Organization | WESTPORT WATER ASSOCIATION |
| Phone | 503-455-9231 |
Population & Service
| Population Served | 550 |
| Service Connections | 165 |
Drinking Water Violations (163)
This water system has 163 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Oct 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Oct 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Apr 1, 2017 | Mar 31, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Mar 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2016 | Mar 31, 2017 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Archived | Mar 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2016 | Mar 31, 2017 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Mar 31, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2016 | Jan 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | Total Coliform Rule |
| Jan 1, 2016 | — | E. COLI | MR | No | Yes | — | — | — | Unaddressed | — | Ground Water Rule |
| Dec 1, 2015 | Dec 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2015 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Jan 1, 2009 | Jan 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2009 | Total Coliform Rule |
| Jan 1, 2009 | Jan 31, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2009 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Nov 1, 2008 | Nov 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | Total Coliform Rule |
| Nov 1, 2008 | Nov 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | Total Coliform Rule |
| Nov 1, 2008 | Nov 30, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | Total Coliform Rule |
| Oct 1, 2008 | Oct 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2008 | Total Coliform Rule |
| Oct 1, 2008 | Oct 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2008 | Total Coliform Rule |
| Oct 1, 2008 | Oct 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2008 | Total Coliform Rule |
| Aug 1, 2008 | Aug 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2008 | Total Coliform Rule |
| Aug 1, 2008 | Aug 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2008 | Total Coliform Rule |
| Aug 1, 2008 | Aug 31, 2008 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2008 | Total Coliform Rule |
| Mar 1, 2008 | Mar 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2008 | Total Coliform Rule |
| Mar 1, 2008 | Mar 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2008 | Total Coliform Rule |
| Mar 1, 2008 | Mar 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2008 | Total Coliform Rule |
| Dec 1, 2007 | Dec 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2007 | Total Coliform Rule |
| Dec 1, 2007 | Dec 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2007 | Total Coliform Rule |
| Dec 1, 2007 | Dec 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2007 | Sep 30, 2007 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2007 | Jun 30, 2007 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2007 | Jun 30, 2007 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Dec 31, 2006 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Toluene | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | CHLOROBENZENE | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2006 | Volatile Organic Chemicals |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.